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my $conf = Ex::mod->conf(user=>'Alice');
my $a = $conf->new();

sub new {
    my( $conf, %opts ) = @_;
...
    };
    return bless $self, $class;
}

sub send_request {
    my( $self, ... ) = @_;
    croak "Can't send_request via incomplete object\n"
        if  ! $self->{socket};